Oiling device



Dec. 23, 1924. 1,520,390

A.. O. CARPENTER ET AL 01mm; DEVICE ZSheets-Sheet 1 Filed Jan. 17, 1923 I I I INVENTORS flm 0- Car cnfer and Jag/2Z1: a/Yey MW T -11R ATT NEY' Dec. 23, 1924. i 1,520,390

A. O. CARPENTER ET AL OILING DEVICE Filed Jan. 17, 1923 A 2 she? fiet 4 e IV 49; Z

INVENTORS 197/012 0. agbentr and Leya THEIR 'ATT RNEY Patented Dec. 23, 1924.

OFFICE.

ALLAN O. CARPENTER, OF CO'R'NING, AND JOHN LE VALLEY, OF PAINTED POST, NEW YORK, ASSIGNORS TO INGERSOLL-RAND COMPANY. OF JERSEY CITY, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

OILING DEVICE.

Application filed January 17, 1923.

1 0 all whom it may concern:

Be it known that we, ALLAN O. CARPEN TER, a citizen of the United States, and a resident of Corning, Steuben County, State of New York, and JOHN LE VALLEY, a citizen of the United States, and a resident of Painted Post, Steuben County, State of New York, have invented a certain Oiling Device, of which the following is a specification accompanied by drawings.

The invention relates to pumps, compressors and similar machines, but more particularly to an oiling device for constantly supplying lubricating material for the moving parts of the machine.

The. objects of the invention, are to enable an .oil receptacle, preferably located within the casing of the machine, to be supplied with oil and maintained at a substantially constant level, by simple and efii- :ient means, and utilize the variations in pressure in the casing of the machine, due to the action of the moving parts of the machine, commonly known as the breatlr ing action, to actuate the device for supplying oil to the oil receptacle.

Further objects will hereinafter appear, and to all of these ends the invention consists of the combinations of elements, and arrangement of parts having the general mode of operation substantially as described and claimed in this specification and shown in one of its preferred forms in the accompanying drawings, in which Figure 1 is an elevation partly in longitudinal section of a compressor of the vertical type illustrating the invention,

Figure 2 is a detail transverse sectional elevation taken through the oil receptacle on the line 22 of Figure 1 looking in the direction of the arrows, and

Figures 3 to 6 inclusive, are sectional elevations taken through the crank case with the crank in four different positions to illustrate the action of the device.

Referring to the drawings, the cylinder A of the compressor, which might be a vacuum pump, is provided with the reciprocating piston B connected by the connecting rod 0 to the crank l) in any suitable or usual manner, which rotates in this instance, partly within the crank case E and partly within the lower portion F of Serial No. 613,085.

the casing of the machine. The machine is provided with a suitable head G having an inlet H and a discharge pipe J and is also provided with a suitable inlet valve K and a discharge valve L. The usual water jacket 0 is shown around the cylinder A and the machine is adapted to be driven in any suitable manner from the fly-wheel or pulley P. In the present instance a splash system of lubrication is indicated and for this purpose a sp-lasher or vane Q, carried in any suitable manner by one of the moving parts, projects from the lower end of the connecting rod C. This splasher is adapted to dip into the oil R in the oil receptacle S located within the crank casing E and in this instance, conveniently shown as a part of the crank case casting. The lower portion T of the crank case conveniently forms an oil reservoir and in accordance with our invention, the oil is automaticall pumped from the reservoir T into the oil receptacle- S by means of a pumping device actuated by the periodic variations in pressure in the crank case, due to the variations in crank case volume incident to the operation of the machine.

We have found that the pumping device illustrated in the drawings operates satisfactorily and well, :and for this purpose, an air pressure chamber U, located within the crank case, is provided with a. fitting V having an outwardly opening discharge valve W and connected by means of a pi e X to an opening Y in the indicator bocy Z conveniently secured to the outside of the crank case. A pipe or leads downwardly from the pressure chamber U and is provided with a head I) having an inwardly opening inlet valve 0 immersed in the lubricating material in the reservoir T in the bottom of the crank case.

The operation of the device is as follows, reference being made more particularly to Figures 3 to 6 inclusive. Let it be assumed that the crank is driven in the direction indicated by the arrows in said figures, from which it will be seen that in Figure 53 the increase of pressure created within the crank case as the piston moves downwardly will force the discharge valve W to its seat, preventing any pressure change in the air chamber U except by the admission of fluid through the inlet valve 0 in the pump head 5. At the same time the inlet valve 0 will be unseated, allowing the increasing crank case pressure to force oil through the pipe into the chamber U, compressing the air in the chamber U and raising its pressure until the crank reaches its lower dead center as shown in Figure 4. As the crank continues to rotate and begins its upward stroke, the crank case pressure becomes less than the pressure in the air chamber U, causing the inlet valve 0 to seat and the discharge valve W to unseat, as shown in Figure 5. Oil will then flow from the chamber U through the pipe X and will be discharged from the opening Y until the crank reaches its upper dead center as shown in Figure after which the cycle will be repeated.

The indicator body Z is preferably provided with a glass plate (Z held in position by a cap c so that the flow of oil delivered by the pump to the receptacle S may be observed from the outside.

We claim:

1. In a pump, compressor or similar machine, the combination of a cylinder and reciprocating piston, a crank and. crank case, a 's'pl'a'sher movable with the crank, an oil receptacle located in the crank case into which the splasher dips, and pumping means having inlet and discharge valves actuated by the periodic variations in pressure in the crank case of the machine, due to the action of the moving parts, for supplying oil to said receptacle.

2 In a pump, compressor or similar machine, the combination of a. cylinder and reciprocating piston, a crank and crank case, the bottom of the crank case forming an oil chamber, an oil receptacle in the lower portion of the crank case above the said oil chamber from which oil may overflow into the oil chamber in the crank case and a pumping device having inlet and discharge valves actuated by the periodic variations in pressure in the crank case, due to the action of the moving parts of the machine, for pumping oil from the oil chamber to the oil receptacle.

3. In a pump, compressor or similar machine, the combination of a cylinder and reciprocating piston, a crank and crank case, the bottom of the crank ease forming an oil chamber, an oil receptacle in the lower portion of the crank case above the said oil chamber from which oil may overflow back into the oil chamber in the crank case, and a pumping device actuated by the periodic variations in pressure in the crank case, due to the action of the moving parts of the machine, for pui'nping oil from the oil chamber to the oil receptacle, said pumping device including an air pressure chamber in which pressure varies in accordance with the said variations of pressure in the crank case,

and valved fluid connections leading from said air pressure chamber to the said oil chamber in the bottom of the crank case and to said receptacle.

Ina pump, compressor or similar machine, the combination of a cylinder and reciprocating piston, a crank and crank case, the bottom of the crank case forming an oil chamber, an oil receptacle in the lower portion of the crank case above theoil chamber from which receptacle oil may overflow back into the bottom ot the crank case, an air pressure chamber having an oil inlet connection leading to the said oil chamber and an inlet valve in said connection, an oil dis charge connection leading from the air pressure chamber to the oil receptacle and having a discharge valve, whereby the inlet valve is opened by increase of pressure in the crank case and the discharge valve is opened by increase of pressure in the air pressure chamber and simultaneous decrease of pressure in the crank case.

In testimony whereof we have signed this specification.

ALLAN O. (lARPEN ll lll. JOHh LE VALLEY.

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